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McGraw Hill Integrated II, 2012 View details

10. Roots and Zeros

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Exercise 74 Page 79

Construct a table to find all of the possible values of the expression for each of the values from the replacement set.

± 1, ± 2, ± 4, ± 8, ± 1/5, ± 2/5, ± 4/5, ± 8/5

Practice makes perfect

To find all of the possible values of ± ba, replace both variables with each value from the replacement sets and simplify the expression.

±	a	b	±b/a	Simplify
+	1	1	+1/1	1
-	1	1	-1/1	-1
+	1	2	+2/1	2
-	1	2	-2/1	-2
+	1	4	+4/1	4
-	1	4	-4/1	-4
+	1	8	+8/1	8
-	1	8	-8/1	-8
+	5	1	+1/5	1/5
-	5	1	-1/5	-1/5
+	5	2	+2/5	2/5
-	5	2	-2/5	-2/5
+	5	4	+4/5	4/5
-	5	4	-4/5	-4/5
+	5	8	+8/5	8/5
-	5	8	-8/5	-8/5